The inn "Schmidt-Peccolo am Goetheturm, Goetheruh" is located directly on Wendelsweg in Frankfurt's city forest. Nice terrace for a short or longer break. Only the Goetheturm is no longer there - an arson attack destroyed the popular observation tower on October 12, 2017. goetheruh.de
Update: The beloved Goetheturm has been rebuilt and has been open to the public again since April 6, 2021.